Where was this 'outrage outburst from the rampant, foaming-at-the-mouth left wingers?'
The 'leftists' (whoever they are) don't have any official position on this.
This OP is just mischief-making.
While I'm here though - yes I'll be wearing a poppy, although I don't tend to wear it until the week leading up to the 11th. The reason is that if I wore it now, by that time I'd be so used to it that it wouldn't mean so much to me. Perhaps I'm wrong - but that's my reasoning.